J Jacobaea (Ragwort).—May be raised from cuttings in the same way as Verbenas, and will grow freely from seeds sown in autumn or spring. It delights in a rich, light soil. The purple Jacobaea is a great favourite of the public. Flowers in August. Height, 1 ft. Jacob's Ladder.—See "Polemonium." Jasione Perennis (Sheep Scabious).—A hardy [...]